DE602004032147D1 - Isolation transformer - Google Patents

Isolation transformer

Info

Publication number
DE602004032147D1
DE602004032147D1 DE602004032147T DE602004032147T DE602004032147D1 DE 602004032147 D1 DE602004032147 D1 DE 602004032147D1 DE 602004032147 T DE602004032147 T DE 602004032147T DE 602004032147 T DE602004032147 T DE 602004032147T DE 602004032147 D1 DE602004032147 D1 DE 602004032147D1
Authority
DE
Germany
Prior art keywords
printed circuit
voltage side
coils
circuits
boards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE602004032147T
Other languages
German (de)
Inventor
Claude Gudel
Francois Marquet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaisons Electroniques Mecaniques LEM SA
Original Assignee
Liaisons Electroniques Mecaniques LEM SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liaisons Electroniques Mecaniques LEM SA filed Critical Liaisons Electroniques Mecaniques LEM SA
Publication of DE602004032147D1 publication Critical patent/DE602004032147D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
    • H01F19/08—Transformers having magnetic bias, e.g. for handling pulses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Conversion In General (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Transformers For Measuring Instruments (AREA)
  • Regulation Of General Use Transformers (AREA)

Abstract

The supply has an isolating device with an intermediate magnetic circuit (13b) located between primary and secondary magnetic circuits (13a, 13c) and coupled to the circuits (13a, 13c) respectively through intermediate coils (16, 17). The coils have turn portions in the form of U-shaped conductors mounted to printed circuit boards (18, 19). The boards have conducting tracks interconnecting the conductors to close the portions. The device interconnects a high voltage side and a low voltage side that are respectively mounted on the printed circuit boards (18, 19) separated by an air space or a space filled with an isolating material such as epoxy resin. An independent claim is also included for an electrical value measurement device comprising an electrical power supply.
DE602004032147T 2004-11-23 2004-11-23 Isolation transformer Active DE602004032147D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405726A EP1659413B1 (en) 2004-11-23 2004-11-23 Isolation transformer

Publications (1)

Publication Number Publication Date
DE602004032147D1 true DE602004032147D1 (en) 2011-05-19

Family

ID=34932377

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004032147T Active DE602004032147D1 (en) 2004-11-23 2004-11-23 Isolation transformer

Country Status (7)

Country Link
US (1) US20080303512A1 (en)
EP (1) EP1659413B1 (en)
JP (1) JP2008521231A (en)
CN (1) CN101065675B (en)
AT (1) ATE504842T1 (en)
DE (1) DE602004032147D1 (en)
WO (1) WO2006056833A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2144070B1 (en) * 2008-07-11 2012-03-21 Liaisons Electroniques-Mecaniques Lem S.A. Sensor for high voltage environment
EP2667389B1 (en) * 2012-05-24 2014-12-17 LEM Intellectual Property SA Current Transformer Unit
WO2014127788A1 (en) * 2013-02-25 2014-08-28 Isabellenhütte Heusler Gmbh & Co. Kg Measuring system having several sensors and having a central evaluating unit
JP2016207941A (en) * 2015-04-27 2016-12-08 株式会社村田製作所 Coil component
CN109547220B (en) * 2018-12-14 2023-11-28 深圳和而泰智能控制股份有限公司 Isolated communication circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724920C2 (en) * 1977-06-02 1982-08-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt High-voltage resistant signal transmission device with an isolating transformer
US5615091A (en) * 1995-10-11 1997-03-25 Biochem International, Inc. Isolation transformer for medical equipment
GB2307795A (en) * 1995-12-01 1997-06-04 Metron Designs Ltd Isolation transformer with plural magnetic circuits coupled by a winding
SE9903466D0 (en) * 1999-09-24 1999-09-24 Siemens Elema Ab Insulation transformer
US6670799B1 (en) * 2000-05-03 2003-12-30 Nxt Phase Corporation Optical current measuring for high voltage systems
US6483203B1 (en) * 2000-06-08 2002-11-19 3Com Corporation Single unit integrated transformer assembly
US6907230B2 (en) * 2001-03-19 2005-06-14 Adc Telecommunications, Inc. Telecommunications chassis, module, and bridging repeater circuitry
GB0220673D0 (en) * 2002-09-05 2002-10-16 Switched Reluctance Drives Ltd Measurement of the rate of change in switched reluctance machines
US7361844B2 (en) * 2002-11-25 2008-04-22 Vlt, Inc. Power converter package and thermal management
US7889041B2 (en) * 2007-11-05 2011-02-15 Schweitzer Engineering Laboratories, Inc. Systems and methods for forming an isolated transformer

Also Published As

Publication number Publication date
WO2006056833A1 (en) 2006-06-01
US20080303512A1 (en) 2008-12-11
CN101065675B (en) 2011-07-20
EP1659413A1 (en) 2006-05-24
ATE504842T1 (en) 2011-04-15
JP2008521231A (en) 2008-06-19
EP1659413B1 (en) 2011-04-06
CN101065675A (en) 2007-10-31

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